Quick opening blow-off valve



P 1933- E. M. BEEBE Re. 18,946

QUICK OPENING BLOWOFF VALVE Original Filed April 29, 1929 ATfOENEYReissued Sept. 12, 1933 UNITED STATES QUICK OPENING BLOW-OFF VALVEEdward M. Beebe, Shawnee, Okla.

Original No. 1,766,165, dated June 24, 1930, Serial No. 359,078, April29, 1929. Application for reissue June 21, 1932. Serial No. 618,512

Claims. (01. 251-133) 1 My invention relates to blow-off valves, to beused in connection with steam boilers or in connection with any devicewhere a controlled quick release of pressure is desired. 5 The objectsof my invention are to provide a device of this character which is new,novel, practical and of utility, which may be easily and quicklyinstalled; which will effect the release of pressure, or of a substanceunder pressure, from a steam boiler, a tank, a pump, a reservoir, a pipeline and the like, which may be opened for use instantly; which may beclosed instantly; which may be operated by remote control; which will beheld closed by the pressure it conserves; which will not leak; which isinexpensive to manufacture; which is easily installed; the parts ofwhich, when worn, may be repaired on the premises and be easily andquickly replaced; which by the grinding of a valve and its valve seat,may be entirely renewed; which will be efficient in performing all theservices for which it is intended.

Valves now in use have proven expensive to manufacture and to repair,if, indeed, they are susceptible of repair. Due to the wear of operationand the action of substance under pressure -which frequently containsmud, sludge or other hard particles, the valves proper and their seatsare quickly cut away, to such an extent that the.

valve may not be closed. Frequently the result is the discarding of theentire valve and its replacement. The usual valve is so constructed thatits moving parts are not susceptible to quick or easy replacement andwhen the valve and seat are worn it must be transported to a machineshop having special equipment for grinding them. Withthese and otherobjects in view as will more fully appear my invention consists in theconstruction, novel features, and combination of parts hereinafter morefully described, pointed out in the claims hereto appended, andillustrated in the accompanying one sheet drawing, of which,

Figure 1 is a sectional view along the broken horizontal section lineshowing the positioning of reinforcing ribs and valve head; Fig. 2 is anelevational sectional View; and Fig. 3 is a perspec- Like characters ofreference designate like parts in all the figures.

It is understood that various changes in the form, proportion, size,shape, weight and other details of construction, within the scope of myinvention may be resorted to without departing from the spirit or broadprinciple of my invention and without sacrificing any of the advantagesthereof; and it is also understood that the drawing is to be interpretedas being illustrative and not restrictive.

- A practical embodiment of the invention as illustrated in the drawingincludes:

A valve housing 1 cast in one piece, inlet pipe 2 and web 2A beingintegral therewith. Said valve housing 1 in general is a hollow cylinderin form, having an annular central enlarged portion as shownat 3. Saidenlarged portion 3 is merged into said intake pipe 2 as shown at 4. Aplurality of vertical ribs 5 are cast integrally with the interior wallsof said enlargedportion 3 and serve to strengthen same, and to act as aguide for a valve head 9. Said ribs 5, however, do not'entirely closethe bore of said'ring 3 as shown at 6. The portion of said housing 1above said ring 3 has a straight bore forming a chamber 8 for theclosebut not restrictive insertion and operation of said valve head 9.Said valve head 9 is generally cylindrical, is channelled or slottedvertically as shown at 15, is flat upon its top surface; taperedslightly as shown at 10 adjacent its lowerextremity, tomake a groundsaid housing 1 at one side of, and connected interiorly and exteriorlywith said ring 3 is said inlet pipe 2 standard pipe threaded as shown at'7. The top of said valve housing '1 is threaded as shown at 16.toreceive anannular cap 1'7, also threaded as shown at 16. The under sideof said cap 1'7 is ch'annelled by a vertical annular slot shown as 18.isbored from'above vertically to form a well for the reception of apacking gland 19, and with a perforation through its under centralportion to permit the passagetherethrough of a valve stem 2'7. Said cap1'7 is studded upwardly by a p1urality of studs 20. Surmounting the flatsurface ofs'aid cap 1'7 is annular plate 21, the central perforation ofwhich is enough to allow the upward extension therethrough of theplurality of said stud bolts 20. Upon the top surface of said plate 21adjacent its outer edge is formed vertically a lug 22, perforated tohold a pivot means shown as 23 Said plate 21 isheld in place by'aplurality of locknuts shown as 24, on said stud bolts 20. Said packinggland 19 is held in place by said plurality of stud bolts 20 passingupwardly through perforations in its flanged portion 25, and is adjustedbylock nuts 26. Said valve stem 27, bifurcated at its upper end portion28, extends downwardly through said packing gland 19, through packing ofany usual kind shown as 29,

The central portion of said cap 17 diametrically large through thecentrally perforated portion of the underside of said cap 17, throughsaid chamber "rounding, a hollow cylindrical portion extending Ioutwardly and upwardly from one side of said 8 and screws into the topcentral portion oi said valve head9. Pivoted between the forks of saidbifurcated end 28 of said valve stem 2'7, by any usual removable means32, ,extends outwardly an arm 33. By means of two links 34, pivot means35, and said pivot means 23, said arm 33, is connected 'operably withsaidlug 22 on said plate 21. a

In operation of the inlet pipe 2 of my device is connected with theoutlet of the boiler, tank, pipe line or 7 other container underpressure. Said pressure flows into the said inlet pipe 2 of my device,but is held from escape downwardly therefrom by said valve head 9 seatedupon said seat 11. Fluid under pressure is permitted to freely flowaround said valve head 9 through saidchannel 6 of said enlarged portion3 of the housing, and thence upward into said chamber 8, through theplurality of channels 15. Thus the pressure in said inlet pipe 2 and insaid chamber 8 is equalized, and is exerted downwardly upon said valvehead 9, effectually keeping same tightly closed. 'When said valve 9 iscracked upwardly by pullingdown the extended arm 33, the substance underpressure is allowed" to. be-

gin flowing outwardly through the outlet 36.

" tion of the substance under pressure, upon my device is limited to thering valve seat and the tapered portion of the valve head. Both thevalve head and the ring seatmay be easily removed for grinding or forreplacement'by new' parts, by removal of said cap 17.

Obviously, the invention is susceptible of'em- 'bodiment in forms otherthan that which is i1- lustrated' in the accompanyingdrawing anddescribed herein, and applicable for uses and purposes other than asdetailed, and I therefore consider'as my own all such modifications andadaptations and other uses of the form of the device other than asherein described as fairly fall within the scope of my' invention. e

What is claimed isz" 1. A' quick opening bodying a 'hollow' 'cylindricalvalve housing having a'circular enlarged hollow portion theresurenlarged portion for connecting a line, a

- valve seat removably positioned within said housing below saidenlarged portion, a vertically slotted valve head slidable'in saidhousing adapted to seat within and hermetically seal said .removableseat, a valve stem having its upper end portion bifurcated,threadedlyattached to said head and extending above said housing, acentrally 5. anchored to said plate adapted to raise and lower said stemand head; v 2. A quick opening valve, as described, comprising incombination,.a hollow cylindrical valve housing having a circularenlarged hollow portion there surrounding, a hollow cylindrical portionextending outwardly from one side of said valve, as described; em-

enlarged portion for connecting a pipe line, a valve seatpositionedwithin said housing below said enlarged portion, a vertically slottedvalve head slidable in said housing adapted to seat within andhermetically seal said seat, the slots in said head communicating withthe portion of the valve housing above said circular enlarged hollowportion, a valve stem attached to said head and extending above saidhousing, a centrally perforated cap attached over the upper end of saidhousing, a packing gland aroundsaid stem housed within said cap, and alever arm supported on the cap and adapted to raise and lower said stemand head.

3. The combination with a valve housing having a side inlet and a bottomoutlet and having 'a removable valve seat between said inlet and saidoutlet, of a slotted valve head slidable in said housing and adapted toseat Within said seat to;

close said outlet, said slots adapted to permit pressure entering saidinlet to reach the upper portion of said housing for holding said valvehead closed until manually opened, and means for quickly moving saidvalve head for opening said outlet.

4. A quick opening valve as described, embodyinga hollow generallycylindrical valve housing having a hollow cylindrical portion extendingoutwardly from one side for connecting a pipe line, a valve seatremovably positioned within said housing below said cylindrical sideportion, a movable valve member including a lower sealing portionseating within said removable valve seat for controlling communicationbetween said side portion and the portion of the valve housing belowsaid side portion, and a guiding portion above said sealing portionslidable in the valve housing and vertically slotted for passage offluid to the upper side of the, valve member, a centrally perforated capremovably attached to the upper end of the valve housing, said valvemember having a stem projecting thru the opening insaid removable cap,apacking gland supported by said cap around said stem, a lever armconnected with the valve stem and means for pivotallymounting said leverarm.

5. A quick opening valve as described, com-- prising in combination, ahollow generally cylindrical valve housing having an intermediatecircular enlarged annular chamber and a hollow cylindrical portionextending outwardly from one being disposed about the periphery of saidmember and'communicating with the housing above said annular chamber andopening to difierent portions of the annular surrounding chamber, acentrally perforated cap attached to the opposite end of the valvecasing, the valve member having a stem projecting through said centralperforation of the cap, a packing gland around said projecting portionof said valve stem and a lever arm pivotally supported on the valvehousing and pivotally connected with the valve stem for raising andlowering the valve member.

' EDWARD M. BEEBE.

